XX项目施工工艺英文版

来源：步遥情感网

Contents

Waterproofing ................................................................................................................................... 2

1. Waterproof coating ............................................................................................................ 2 2. Waterproof membrane ....................................................................................................... 2 3. Polyurethane waterproof painting. ..................................................................................... 3 Floor engineering .............................................................................................................................. 4

1. Cement mortar screed ....................................................................................................... 4 2. Stone ground ..................................................................................................................... 5 3. Wood floor ........................................................................................................................ 6 4. Carpet ................................................................................................................................ 7 5. Tile .................................................................................................................................... 8 6. Epoxy resin flooring construction technique .................................................................... 8 Glass Veneer ...................................................................................................................................... 9 Metal veneer .................................................................................................................................... 10 Door and Window Engineering ....................................................................................................... 11

1. Sliding glass door ............................................................................................................ 11 2. Aluminum louver installation ......................................................................................... 13 3. Sliding Window ............................................................................................................... 14 4. Vertical Hinged Door ...................................................................................................... 14 Emulsion Paint Engineering ............................................................................................................ 15 Wall Engineering ............................................................................................................................. 16

1. Wood veneer.................................................................................................................... 16 2. Dry-hang stone ................................................................................................................ 17 3. Stone veneer .................................................................................................................... 19 4. Stainless steel veneer ....................................................................................................... 21 5. Tile veneer ....................................................................................................................... 23 6. Aluminum veneer ............................................................................................................ 24 7. Light Steel Keel Partition Wall........................................................................................ 25 Ceiling Engineering ........................................................................................................................ 27

1. Light steel keel gypsum board ceiling............................................................................. 27 2. Aluminum composite panel ............................................................................................ 28 3. Exposed Concrete Construction Technique..................................................................... 29

Waterproofing

1. Waterproof coating

Technological Process：

Clean the base layer → First layer → Additional Enhancement Layer Processing → Second layer → Third layer → Inspect and Repair accordingly → Protective Layer → Waterproof Test → Quality Check and acceptance

a.Base layer clearing：

Remove impurities，the base surface cracks can be filled with 107 cement screed leveling after construction.

b.The first base layer treatment： Apply the first JS waterproof coating， using a more diluted mixture ratio (1：1.6：0.5) for the base layer treatment.

c.Local enhancement layer:

Enhance the quality of concrete where defects are observed, add a fiber cloth. The weight ratio of coating liquid material: powder: water = 1：1.6：0.5 d. The second layer：

Apply a second layer of JS waterproof coating, using a ratio of liquid material: powder: water =1：1.6：0.2

e.The Third Layer：

The weight ratio of the coating is the same as above. f. Inspection：

Once the JS Cement based waterproof coating is completed and the necessary inspections performed, a layer of plywood can be fitted to protect the construction 。

2. Waterproof membrane

Technological Process

Clean up the base layer → Inspect the base layer → Spray (coat) primary treatment → Special parts to enhance the process → Set up the paving lines on the base surface→ Base layer paving→ Snap paving lines on the membrane → Paving of water proof membrane→ Sub-acceptance → The protective layer a. Clean up the base layer：

1. The base surface should be smooth and solid, the corner should be circular, local defects should be repaired, and the base layer should be prepared for brushing treatment.

2. Paving lines should be drawn on the treated base surface according to the membrane paving direction.

b. Cold adhesion method and execution：

1. Match the performance of the adhesive membrane according to Stoichiometric Press, stir and brush evenly to complete the process within the required time. 2. Paving lines should be smooth and straight.

3. To affix the membrane, it must be evenly coated with adhesive in the rolling process. 4. The width of sealing material is ≧10mm. c. Hot adhesion method and execution：

1. When using hot adhesion method, heat must be added uniformly until the surface turns to

shiny black color, then proceed with the gluing.

2. When the polymer bitumen membrane thickness is less than 3mm, the hot adhesion method

cannot be used.

3. After the membrane surface melts, it must be rolled immediately. Due to the pressure, the

molten polymer asphalt should overflow on the stone edges. 4. Paving should be smooth and straight.

3. Polyurethane waterproof painting.

Technical process:

Clean the base →Apply primer→ Coat waterproof layers → Add a protective layer a. Base treatment:

Before coating the waterproof layer, first clean the base surface from debris such as mortar lumps and using a clean wet cloth wipe the surface. After checking the base surface for unevenness, cracks and defects proceed to the next procedure. b. Apply primer

1. Primer preparation: First combine polyurethane, ethylene and xylene with a (weight) ratio of 1∶1.5∶2 and mix evenly. Finish using the ready primer within 2 hours.

2. Primer application: Using a long roll brush, evenly brush the base surface with a prepared primer with the amount of around 0.3kg/m2. 4 Hours after application, when it’s not sticky to touch, proceed to the next procedure.

3. Waterproof layer coating: Material formula: combine polyurethane, ethylene and xylene with a (weight) ratio of 1∶1.5∶0.3 and using an electric mixer mix for 3-5 minutes until an even consistency. Finish using the mixture within 2 hours. Do not prolong the time. c. Additional Coating layer

1. Application of the first coating: After curing and drying of the coating material in the first reinforcement layer, first check the additional layer for any residual pores or air bubbles, if none, the first coating can be applied. If there are any holes or bubbles, use a rubber scrapper to press the mixture into the air hole. Partly brush the coating again, then do the first layer coating procedure. When applying the first layer polyurethane coating waterproof material, a plastic or rubber scrapper can be used to scrape evenly. Make an effort to match the

thickness at around 1.5mm, the quantity being 1.5kg/m2.

2. Application of the second coating: After the first coat cures, the second coating layer can thereon be evenly applied, the scrapping direction should be perpendicular with the first layer. The time between applying the second layer and the first layer is generally not less than 24 hours, and not more than 72 hours.

3. Application of the third coating: The application method is the same as the second layer, but the coating direction should be vertical.

4. Scatter rubble: Before the third coating, scatter fine rubble particles with the size of 2mm to strengthen the coating layer and protective layer adhesion. d. Apply protective layer:

Generally, after the last coating dries, according to the appropriate form of architectural design requirements apply cement slurry. A fine stone concrete protective layer can be applied on the surface.

Floor engineering

1. Cement mortar screed

Technical process

Treat the Base → Find Elevation, Snap Line → Sprinkle Water → Mortar and Screed→ Mix the Mortar → Apply Cement Mortar Binding Layer → Apply Cement Mortar Surface Layer → Level with Wood Float → Apply Pressure using an Iron Trowel to the First Layer → Apply Pressure and Polish for the Second Time → Apply Pressure and Polish for the Third Time → Maintenance a. Base Treatment

For base surface cleaning, use 10% caustic soda solution to wipe off oil and grease and use clean water to rinse off the solution. b. Find Elevation, Snap Line

According to the +50cm level line on the wall, measure down the surface elevation and snap the line on the wall. c. Sprinkle Water

Using a watering pot evenly water the ground base level once. d. Apply Mortar and Screed

According to the elevation level line snapped on the room inner four walls, determine surface mortar thickness（≥20mm）then pull a level line and begin applying the mortar（5cm×5cm). The horizontal and vertical spacing is from 1.5 to 2m, the top of the mortar is the ground surface elevation. Mortar paving material and reinforced mortar mix ratio should be the same as the ground mortar. e. Mix the Mortar

The volume ratio of cement mortar should be 1:2 (cement: sand), the adjustment level is less than or equal to 35mm, strength grade of over M15. In order to control the amount of water,

f. g.

using a mixer, mix uniformly and ensure a consistent color Apply Cement Mortar Binding Layer

Before applying the cement mortar apply a layer of cement grout, do not apply to a large area. Apply Cement Mortar Surface Layer

After applying the cement grouts apply the cement mortar evenly in between mortar (or reinforcement) then using a wooden scraping rod, scrape and level according to the mortar (or the reinforcement) height.

Level Using a Wooden Trowel

After scraping with a wooden rod, use a wood trowel to flatten, operate from inside to outside and using a 2 meter guiding ruler check the evenness. First Application of Pressure Using an Iron Trowel

After smoothing with a wooden trowel, immediately press using an iron trowel until the pulp is out. If water overflows on the mortar surface evenly sprinkle a layer of dry cement and sand with 1:1 ratio (pass the sand through a 3mm sieve), then press again with the wood trowel until the dry mixture and the mortar is combined. If it’s required for a ground grid, snap grid lines on the base surface, using a valve split slots then again using valves divide seams and press until flat, straight and smooth.

Second Application of Pressure and Polish

After the mortar surface layer's initial setting, using an iron trowel, pressure for the second time while flattening the holes and edges. Third Application of Pressure and Polish

Before the final cement mortar setting, proceed to the third application of pressure. Using an iron trowel smoothen out all trowel marks and flatten, compact and polish all trowel marks caused by the second pressure application (must be completed before the final setting). Maintenance

24 hours after applying the pressure to the ground, spread sawdust or cover with other materials for water conservation. The curing time should be not less than 7 days and comprehensive strength level should reach 5MPa before it’s accessible. During winter construction the indoor temperature should not be lower than +5 degrees Celsius.

2. Stone ground

Technical process:

Put together the serial number → Locate the level → Treat the base → Spread the key coat mortar → Pave stones → Curing → Joints → Product protection a. Put together the serial number:

Before the official paving, each stone panel should be put together in accordance with the pattern, color and texture. Non symmetrical parts should be put against the wall in the room. After testing arrange the serial numbers in two directions and then according to the serial number put them in order. b. Locate the level:

According to the horizontal standard line and design thickness, on four walls and columns snap upper level control line on the surface layer. c. Treat the base:

Using a wire brush clean the laitance, ash and dust of the base layer, then using a broom clean the surface well.

Spread the key coat mortar:

Before applying, the base layer must be wet and on top of the base layer brush basic cement slurry or interface with cement paste, using a brush distribute evenly to ensure a uniform dry mortar.

Pave stones:

Place the stone on the dry mix, pick the stone after leveling it using a rubber hammer, pour a suitable amount of cement paste on the dry mortar, at the same time put 1mm of cement paste at the back of the stone, then place the stone flat on the mortar and according to the elevation control line using a rubber hammer place it flat. Curing:

After completing the pavement of the stones it must be cured, curing time should not be less than 7d. Joints:

When the stone surface strength reaches walk able level (comprehensive strength of key coat layer is 1.2Mpa) proceed to filling joints using the same type, strength level and color cement paste or special joint paste. Paint should have mineral pigments; it’s prohibited to use acidic pigments. Joints are required to be clear, straight, flat, smooth and depth, consistent with the color of the stone.

3. Wood floor

Technological process:

Set embedded parts → do a moisture proof layer → snap line → set wooden cushion block and wooden grid → fill in the heat preservation and sound insulation material → floor surface→ product protection

a. Set embedded parts: in order to fix wooden grid and to avoid the wooden floor shaking set embedded parts.

b. Do a moisture proof layer: for moisture proof layer, generally use cold primer oil, hot asphalt or asphalt felt methods. Its role is to prevent moisture intrusion to the base layer causing wood deformation, decay and etc.

c. Snap line: before installing the wooden cushion blocks and wooden frame, snap lines all around the wall according to the design level in order to find the wooden grid top level. d. Set up wooden cushion blocks and wooden frame, which are main components for base layer of the wooden floor and it requires a certain height.

1. Before using the wooden grid apply anti corrosion treatment. When fixing the

wooden grid cut the surface layer to 10mm×10mm so that the galvanized wire can easily fit into the indentation and the grid surface is flat. The binding galvanized wire spacing is 800mm.

2. Using 20mm thick wooden block nail it on top of cushion and wooden grid, mid

spacing is 400mm.

3. When paving wooden floor there is also another method of not putting wooden

cushion blocks, such as directly put the wooden grid on top of cushion layer or

rubber cushion. For Wooden grids, each partition is 1200mm fixed with 40mm×40mm transverse bracing(on stilt base layer set up cross bridging). On cross bracing and vertical intersections fix with nails.

e. Fill in the heat preservation and sound insulation material. Inside the grid and space between the grids fill in lightweight materials such as cinder, expanded perlite, expanded vermiculite, mineral wool felt and etc. with thickness of 40mm.This can reduce the sound produced when people walk on the floor. But the filling materials should not be higher than the wooden grid. At the same time, paving of the surface wooden panels should be done after the heat preservation and sound insulation filling materials have dried.

f. The construction of the surface layer is the last step of the hardwood floor, and it’s the most important step so we must pay special attention to it.

1. The convenience of paving should be considered when choosing direction of the strip wood floor, fixed firmly and be aesthetic. For corridors, passageways and other parts, the paving direction should be the same as the walking direction and in an indoor room pave following the light. Walking directions must be uniform.

2. Starting from one side of the wall, tightly pave the wooden panel row by row, the gap should not be more than 1mm, the joints of the panels should be on the wooden grid, the length of the circle nails should be 2-2.5 times the thickness of the panels. Drill before paving the hard wood floor, generally the drill hole diameter is 0.7-0.8 times of the nail.

3. When fixing with twist nails and thumb pins, there are two methods of nailing; visible and hidden. Visible nail method, first flatten the nail head then nail the thumb pin vertically in to the panel surface and the wooden frame. On every dot insert two nails. Same row nail heads should be on the same line and nailed 3-5mm into the panel. Hidden nail method, first flatten the nail head then from the concave angle of the panel nail in a slanting position. When paving the nail must be in a certain angle with the surface, in general 45°or 60°is commonly used.

4. Carpet

Technical Process:

Clean base layer →Snap line → Cut the material → Paste PVC skirting board→ Paste carpet→ Product protection.

a. Clean the base layer. The base surface should be flat and, dust and dirt should be removed. No

grease, paint, wax and so on. Before paving you must completely clean and use a soaked damp cloth to wipe the floor. If there are bumps on the surface they should be chipped, if the surface has a depression, use 107 glue mud to correct it. b. Snap line according to the grid lines on the floor. c. Cutting. Use Carpet cutter to cut the carpet to size.

d. Paste PVC skirting board. Glue the skirting board parts and dry for 10 to 15min then fix the

skirting boards. Use cotton and a rubber pressure roller compaction. Between the skirting board edge and the ground, reserve a gap for the carpet thickness.

e. Paste the carpet. Start laying from the center of the room to the side and stack in the shortest

direction, and then use a toothed scraper to scrape the adhesive evenly over the surface at the

base level and the bottom surface of the carpet. After drying for 10-15min, starting from the central part, flatten, compact, and then paste it on the other side. Make sure the carpet doesn't have wrinkles, ridges. The two adjacent parts of the carpet should not have gaps. The carpet can also be cut into 500mm square pieces, brushed with adhesive and pressed into the ground line (you can also paste double-sided sticky tape) and laid.

f. Vacuuming. After the carpet is laid, the 1d adhesion has met the requirements, the vacuum it

clean.

5. Tile

Technical process:

Base treatment → Snap line → Pre-tiling → Tiling → Joint treatment → Cleaning Operation technique: a. Base treatment:

Clean the dust and debris thoroughly; there shouldn’t be any holes, cracks and other defects. b. Snap line:

Before construction snap elevation control line on four walls, snap a cross line on the floor to control floor tile size. c. Pre-tiling:

First according to the design drawing requirements carry out a strict selection for tiles color, texture and surface roughness, stack and prepare tiles neatly according to the tiling order. d. Tiling:

For tiling use 1:3 dry cement mortar with 25mm thickness. Before tiling it is appropriate to wet the back of the tiles and keep the front dry. Put tiles on the cement mortar in accordance with the requirements and with a rubber hammer tap the tile surface until it reaches the requirements. e. Joint treatment:

24 hours after the floor tiling, clean and treat joints. Before starting the joint treatment, clean the joints from dirt and use a special caulk to seal the joints. f. Cleaning:

After completion (generally after 24 hours) use a cotton cloth or other materials to clean the tile surfaces.

6. Epoxy resin flooring construction technique

Technical process:

Treat Floor Surface → Paint the floor base → Coat mid-layer → Paint the floor surface a. Floor surface treatment

1. Clear the surface of debris and cement slurry. 2. Use a cleaning agent.

3. Rinse with water and keep it dry.

4. Use putty to fill holes and depressions on the floor surface, polish well and clean the

surface.

b. Floor finish sealant

1. On a clean and flat surface use a high pressure gas free spray or roller for coating.

2. A certain amount of diluting agent should be added to the epoxy sealant paint to enhance

the adhesion between the coating and the base. The amount of coating is subject to saturated surface.

3. Apply paint using a brush on partial leakage. The excess primer on the surface must be

evenly polished before the next process.

c. Putty material

1. After drying, scrape two coats of putty to ensure the floor abrasion resistance, pressure

resistance etc., and then adjust floor level.

2. Using quartz sand and epoxy putty apply the first coat after mixing well. 3. Polish the first coat and clean with vacuum cleaner.

4. After the second coat of putty dries, repair the holes and cracks if there are any, then

using an electric sander polish until smooth, then vacuum it clean.

d. Mid-layer coating

1. After polishing and cleaning, apply a middle layer of epoxy floor paint on putty surface

(20℃， within 24 hours).Application methods are brushing, scraping and high pressure airless spraying.

2. This makes the ground smoother, makes it easier to detect defects and level construction

surface.

e. Floor surface paint

1. When the mid-layer dries, proceed to epoxy floor paint coating. Application methods are

scraping and high pressure airless spraying.

2. Before applying the epoxy paint, using a bag type dust free grinding machine, polish the

middle layer and vacuum.

Glass Veneer

Technical process:

Treat the base → Install the studs → Install the base layer (wood base) →Install the mirror → Product protection

a. Treat the base:

Embed the wooden brick and wooden wedge in the wall, the location and mirror size should match up, horizontal distance and mirror width should be equal and vertical distance should be equal to the mirror height. When installing a large mirror, it should be located in vertical and horizontal 500mm partition wooden brick or wooden edge. Wall surface should be plastered, the plastering should be brushed with hot asphalt or asphalt felt. The asphalt felt can also be applied in between the wooden lining and the glass plate to prevent moisture from deforming the wood. b. Install the studs:

Wall reinforcement is 40mm x 40mm or 50mm x 50mm in small squares. Using an iron nail secure it to the wood brick or a wedge. When installing small pieces of mirrors, double reinforcement can be used; when installing a large surface of mirror, single reinforcement can

be done. Wooden ribs can also be prefabricated into a reinforced two-way truss, using a nail secure it to the wall and columns. Use a long ruler check verticality and flatness. c. Install the boards:

The lining board is 15mm thick board or 5mm thick plywood nailed to the wooden bar. Nail head should not enter the board. The lining board surface is required to be flat, clean, without warps and peeling. When covering a large area, the boards should join on the vertical bar.

d. Mirror installation:

Mirror installation methods are fixed using a wedge, using a screw, pasted with glue and fixed with pressure support.

Metal veneer

Technical process：

Set-out → Veneer processing → Install embedded parts → Install frame → Anti-corrosion → Install the metal veneer → Glue the panel seams → Clean surface

a. Set out:

According to the design drawings and the building axis, level the control line, vertical line, horizontal line and elevation control line. Then according to the design detailed panel arrangement, frame detailed drawing set out the installation position line, roof elevation line, door hole dimension line and the installation location of the keel line on the walls and columns. b. Veneer processing:

According to the design drawings and detailed design panel arrangement drawing requirements, process the panels and according to the requirements secure the rim angles, install the insert pendant or the stiffening rib. c. Installation of embedded parts

Installation of embedded parts on concrete wall and columns: according to the measurements of set out wall and columns install the surface line and panel arrangement size; on the corresponding position drill holes with percussion drill. Place expansion bolts and secure the steel angle connectors on the concrete wall.

Installation of embedded parts on basic structural wall: When installing on basic ceramic wall or secondary structural walls such as walls with embedded steel, use ¢10 reinforced full length horizontal layout with embedded steel welded into one as a connector for the vertical keel. If the wall doesn’t have the embedded steel, drill a hole in the ceramic tiles and using C20 concrete insert the embedded steel as a connecting piece for the vertical keel. After the concrete reaches a certain stiffness level, weld angle steel connectors to the embedded steel.

d. Frame installation 1. Frame installation on walls and columns: the vertical keel is set up and connected on the embedded parts, according to the decorative panels thickness and prepared surface layer line adjust the position and use 2m towing panel to hang vertically then secure it

with bolts. After the vertical keel installation inspection, according to the panel height dimensions, install the horizontal keel and with the vertical keel weld into the same plan. 2. Frame anti-corrosion: Stainless steel frame must be coated with anti-corrosion paint layer, all welding and anti-corrosion coating damaged parts must be painted twice with anti-corrosion paint and after the inspection and acceptance signed by the supervision unit, the party may carry out the following procedures. e. Metal veneer installation:

Before installing the wall and column panels, the operator must wear clean gloves to prevent pollution of the surface and scratching arms. Install step by step, from bottom to top and from one side to the other side. Specific constructions as follows: 1. According to the panel arrangement drawing, draw out the keel plug-in installation position, using a tapping screw fix the plug-in pendant on the keel and make sure that the position of the keel and insert plug-in coincide and then firmly secure it. 2. After the keel plug-in installation is completed, inspect the overall surface flatness, verticality and firmness of installation. Inspect and repair corrosion, repair and apply an anti-corrosion coating on the stainless steel and damaged parts. 3. During the installation process of the metal panels, the thickness of the edge gaps between two panels must be uniform. Install while adjusting the edge straightness, levelness, joint width and height difference of the panel to ensure the overall quality of construction. 4. For a small area of the metal veneer wall construction adhesive method can be used, during construction use a wooden frame for gluing method. First, fix the wooden frame on a wooden board to ensure the flatness level and steel degrees, then using construction glue directly paste the metal panel on the board. While pasting, glue directly the metal decorative panels to the wooden board. The construction glue should be evenly coated so that the decorative panels bond firmly. 5. Gluing panel seams: after the installation of metal panel is completed, fill the seams with a foam stick; put a glue tape on both sides of the glue-line and then seal off using a silicone weatherproof sealant. 6. Surface cleaning: before cleaning the frame remove the protective film, using a degumming cleaning agent remove the glue marks and clean the surface with a neutral cleaning agent.

Door and Window Engineering

1. Sliding glass door

Technical Process:

a. Fixed part Installation

Cut glass → Fix the bottom bracket → Install glass plates → Paste the adhesive seal b. Movable glass door installation

Mark the line → Determine the height of doors and windows → Fix door and windows top and

bottom rail → Fix doors and windows → Install the handles Operation Technique:

a. Fixed part Installation

1. When the fixing glass section panels need docking, the joint width should be 3-5mm, all glass edges must go through chamfering process. After securely installing the glass board into the slot, using silicone insert to all joint gaps, using a plastic film to scrape it flat, and clean with a blade.

2. Fix bottom bracket: stainless steel or copper decorative wood bottom backing, available method is to fix the wooden wedges on the surface using a nail and then using an adhesive, stick the stainless steel panels on timber. If it’s made of aluminum alloy square tube, we can use an aluminum angle to fix on the frame columns or fix it to the floor using a wooden screw.

3. Install glass plate: use a glass suction cup to suck the glass plate and then proceed to the glass position. Insert the top of the glass into the doorframe limit slot and then place the bottom to the stainless steel enveloping surface seam on the wooden bracket. Method of fixing the glass plate on the bottom bracket: on the bottom wood bracket screw the wooden board around 4mm away from the glass surface, then put all purpose adhesive on the wooden board and paste the stainless steel plate.

4. Paste the adhesive seal: after locating the position of the glass board on the glass frame part and securing the top slot and bottom bracket inject the rubber seal in between glass board and the door frame seal.

First after opening the silicone, put it in the glue gun. Using a head pressure rod place the tip of the glue gun at the bottom, then hold the glue gun with one hand, with the other hand pressure the handle using continuous loose movements paste the silicone in the necessary sealing slot. Inject the silicone from the beginning into the necessary slot. Inject with a uniform speed to form a uniform line in the gap. Finally use a plastic film to scrape off the excess silicone, use a blade to scrape the glue.

b. Movable glass door installation

All movable glass door structures have no doorframe; door opening and closing is realized by a spring, floor spring and the door leaf metal rails carry out the hinge joints. 1. Mark the line

Mark the line within the glass doors upper and lower metal rails, according to the rotation axis fix the rotating pinholes and spring connecting plates. Specific operation can be referenced to the spring installation instructions. 2. Determine the height of the door leaf

Glass door height dimensions should be noticed when cutting glass panels including installation of the upper and lower rails. Under normal circumstances, the height of the glass should be less than the measured size around 5mm, in order to facilitate position adjustment during installation.

The upper and lower rails (use mirror stainless steel molding material) of thick glass door are installed in the upper and lower ends and measure the door leaf height.

If the height of the door leaf is insufficient, the upper and lower distance of horizontal doorframe and floor gap exceeds the specified value, adjust by adding plywood padding to the top and bottom rails.

If the door leaf height exceeds the installation size, the excess part needs to be cut only by the glass door professionals. 3. Fix top and bottom rails

After determining the door leaf height, we can secure the top and bottom crosspieces. Within the glass and metal rail side gaps insert and tap in both sides, small strips of wood and in between the door leaf glass and rails gap, inject the silicone seal. 4. Fix the door leaf

Door positioning installation: First on E rail beam position adjust and screw the pin on the plan 1-2mm, then hold up the glass door leaf. Door leafs lower rail of the rotating pin connect with the hole, turn the pin shaft alignment to the spring and then set one pin hole and rotate door leaf axis. Then turn the door leaf by 90 degrees. Doorframe transverse beam at right angles, the door rail rotationally connects the hole alignment pins on the cross beam of the doorframe, the positioning pin is inserted into the inner hole about 15 mm (mobilize the dowel pin on the adjusting screw). 5. Installation of handles

For all glass door handle holes, add T in advance when ordering. Connecting parts of the handles inserted into the holes cannot be very tight. Before the handle is inserted into the glass part, it is coated with silicone. If too loose, it can be inserted in the partially wrapped soft tape. When the handle is assembled, the root and the glass are tightened and then screwed down with retaining screws.

2. Aluminum louver installation

Technical process

Snap line, find horizontal and vertical lines→ Process the window opening→ Aluminum louver inspection→ Install according to the aluminum louver→ Install hardware accessories→ Testing→ Cleaning

1. Snap line, find horizontal and vertical lines:

Find the window opening edge line at the top floor, using a jug line lead the window opening edge line downwards and mark the line at each floor window opening. Every uneven window opening should be straightened with chisel. The window opening level line position must be 50cm higher than the floor level line position, measure the window sill elevation and snap a straight line. Window sill elevation line for each floor (same standard elevation) should be on the same horizontal line.

2. Installation position of the back of the wall:

According to the exterior wall detail drawing and window board width determine aluminum window in direction of wall thickness installation position. If the exterior wall thickness has deviations, in principle should subject to the same room window sill board size and external wall. The window sill panel should be inserted under the aluminum window frame at an appropriate distance of 5mm. 3. Anti-corrosion process:

Apply anti-corrosion treatment on both sides of the window frame according to the design requirements. Avoid direct contact of the aluminum window surface with the cement mortar, it will result in an electrochemical reaction and the corrosion of aluminum.

4. When installing aluminum windows use a direct connector to fix. 5. Emplacement and temporary fixation:

Fix according to the already snapped installation position line, hang, straighten and fix temporarily.

6. Fixing to the wall:

Aluminum windows are fixed to the wall with the galvanized steel sheet connector. 7. Window frame and wall gap processing:

After installing the aluminum window, the window frame and wall gaps should be promptly dealt with.

3. Sliding Window

Technical process:

Snap line, find horizontal and vertical lines → Install window → Seal the four window edges, fill in thermal insulation material → Install hardware accessories → Install window screen 1. Snap line, find horizontal and vertical line:

Locate the sliding window edge at the highest level, use a large wire to lead the window edge line, mark a line at each layer of the window and chisel any edges that are not straight. 2. Install window:

According to the external wall detail drawings and the window seal width ensure that the window is on the wall’s installation position.

3. Seal the four window edges, fill in thermal insulation material:

After fixing the sliding window, the window frame and the wall cracks should be processed in a timely manner. If the design does not specify the exact packing material, mineral wool or glass wool should be used to seal the gaps. Leave a 5 ~ 8mm deep groove on the outer surface to fill with sealant. It is strictly prohibited to fill with cement mortar. After carrying out anti-corrosive treatment on both sides, insulation and sealing materials can be filled in as specified by the design. After installing the aluminum alloy window and window sill boards, caulk the four edges of the window frame simultaneously. When filling, do not use excessive force to prevent deformation of the frame. 4. Install hardware accessories:

After the caulking process is finished, the window hardware accessories can be installed. See the installation process requirement details in the product description to ensure firm installation and flexible use.

5. Install window screen

4. Vertical Hinged Door

Technical process:

Snap line, find horizontal and vertical lines → Determine installation position → Fix temporarily → Fix to wall → Fill door frame → Install door leaf → Install hardware accessories → Cleaning and acceptance.

1. Snap line, find horizontal and vertical lines:

2. 3.

Locate the door entrance edge at the highest level, use a large wire to lead the door edge line and at the entrance of every floor. Chisel any edges that are not straight. For high rise buildings, a theodolite can be used to find the vertical. Determine installation position:

According to the external wall detail drawings ensure the door is in the installation position. Fix temporarily:

According to the already set installation position line and ensure that it is hanging straight. If there are no problems, the rear can be temporarily fixed with a wedge. Fix to wall:

Using a nail gun fix the iron sheet to the wall, iron sheet spacing should be less than 600mm. At the same time ensure that each side is not less than two fixed sheets. Fill door frame:

When the door is fixed, the frame should be timely filled. Use waterproof mortar, before filling clean the base layer thoroughly. Brush a layer of cement slurry and use 1:2:5 waterproof mortar to fill. It is required to fill completely and strictly, cure with water every second day, remove the fixed wedge after 3 days, and use the same method to fill the wedge hole. Install door leaf:

The door leaf is fixed to the frame with an aluminum bracket, the specific method is the same as the door frame.

Install hardware accessories:

After the caulking process is finished, the door hardware accessories can be installed. See the installation process requirement details in the product description to ensure firm installation and flexible use.

Emulsion Paint Engineering

Technical process:

Priming → Fill joints → Apply putty → Apply emulsion paint 1. Priming:

Clean the gypsum board layer, neatly cut the gypsum board edges and using an anti-rust paint apply on all screw heads to prevent discoloration. 2. Fill joints:

Use a special putty to fill the cracks in the gypsum boards, paste it even, and then apply adhesive tape for reinforcement. 3. Apply putty:

Use waterproof putty, in the beginning start smearing completely, after smearing smooth it over with a scraper, don’t leave any cracks on the joints, after it dries use sand paper, file the putty until its smooth and glossy, after this process spray paint can be used. 4. Spray emulsion paint:

Before the emulsion paint can be sprayed it should be filtered, when spraying move evenly, spray gun distance from the wall should be appropriate, don’t stay in the same place for a long

time to prevent the flow. The number of spraying is not limited, should meet the requirements of the standard.

Wall Engineering

1. Wood veneer

Technological process:

Locate and mark the line →Verify embedded parts and holes →apply moisture proof and anti-corrosion coatings →Keel preparation and installation →Install finished product wood veneer →The finished product protection 1. Locate and mark the line:

Before installing the wooden panel and wooden lining according to the design requirements should first locate the proper elevation, plan position, vertical dimension and proceed to snap line.

2. Verification of embedded parts and holes:

After snap line check the embedded parts, whether or not the wooden brick meets the design and the installation requirements, mainly check spacing of the arrangements, measurements, whether or not the position meets the requirements of mounting the keel; measure location of the doors, windows and other holes, whether its perpendicular and matches the design requirements.

3. Application of moisture proof and anti-corrosion coatings:

There is a design requirement for moisture roof and anticorrosive wooden paneling and wooden lining panel, when installing the keel, spread the moisture proof coil or before installing the keel apply moisture proof and anticorrosion coating. 4. Keel preparation and installation: a.

Wooden paneling keel: Use only after applying the fire-retardant coating.

b. Partial wooden paneling keel: According to the room height and size, prefabricate the keel

frame and install wholly or partially. c.

Full height wooden paneling keel: First properly measure the room size, according to the rooms four corners and keel frame position, find a location for four frames, mount it straight and flat, then according to the keel spacing design requirements mount the horizontal keel. Wooden wall keel spacing: the average horizontal keel spacing is 400mm and the vertical keel spacing is 500mm. If the panel thickness is above 15mm, the horizontal keel spacing can be expanded to 450mm. Installation of the wooden keel must be square and straight, spacing between the frame and the wooden brick must be padded using wooden pad, each wooden pad should be mounted with at least two nails, when mounting the keel must keep the paneling surface thickness.

d. Wooden lining keel: according to the actual size of the hole opening, frame material

should meet the design specifications, separate side lining into three precast parts, one on top and one on each side. Each piece is generally two vertical rods, but when the lining panel width is greater than 500mm should add an appropriate rod in the middle. Horizontal direction keel spacing is no more than 400mm, when panel width is 500mm the horizontal keel spacing is not greater than 300mm. The keel must be mounted firm; the veneer surface must be flat, after installation it should be flat, right and straight. Anticorrosion formula and application method shall comply with the provision of the relevant regulations.

5. Installation of finished product wood veneer: a.

Panel color selection line matching: before using, all the panel material should match the same room. Select quantity from near parts so that after installation wood pattern and color be approximately consistent.

b. Shearing preparation: according to the arrangement measurements, on the panel mark the

shearing line. Original wood panel should be cleaned. On plywood, veneer surface it is strictly prohibited to lit, and facet must be scraped straight. When preparing to join, panel length must consider horizontal keel joints. On the back of the Original wood panel, make unloading slots. In general, unloading slot spacing is 100mm, slot width is 10mm, slot depth is 4 ~ 6mm, to prevent the surface deformation. c.

Veneer installation:

1) Before veneer installation, keel position, flatness level, mounting firmness, moisture proof structure and so on should go through a requirements check, after qualifying, proceed with the installation.

2) After matching properly, the veneer panels proceed to trial assembly, panel size. Joints and seams should completely fit the structure, wood pattern and color should match, under these circumstances proceed to official installation.

3) Veneer closing panel should be glued and nailed to the keel, mounting solid panel nail should meet the specifications, the nail length is about 2 ~ 2.5 times of the thickness of the panel, spacing between the nail should be 100 mm, nail head should be flattened and with the tip needle cap should be punched along the direction of the pattern in to the surface by 1-2mm.

4) Nail plaster: Plaster material should be selected approximately by pattern, color, and frame material. Plasters standard size, width and thickness must be consistent, pasted flat and without errors.

2. Dry-hang stone

Technological process:

Basic level process →control line →Snap line →Choose stone → Prearrange stone material →Install embedded parts→ Install steel frame →Install adjustment piece → Slot stone material → Install Stone → Clean up → Protect the finished product

1. Basic level processing: clean walls basic level surface, scrape clean the parts with bulge that

will affect installation of the frame. Veneer base, structural level strength and density must

comply with the specifications. According to the decorative wall surface position, check the wall if whether or not there is need to scrape it down to ensure the thickness of the decoration.

2. Control line: Before dry-hang stone construction, according to the design standard elevation

requirements put up 50mm level control line. For each stone, layer elevation line and a control peg on the wall, pull a white line to control wall level position, control and level the room, straighten and level the wall surface. 3. Determine the installation position of the metal expansion pipe or installation position of

the stone frame according to the snap line of the stone partition map. 4. Stone selection: when approaching the site stone materials must be quality checked. Material

quality, pattern sizes and etc. are required to be inspected. 5. Stone material prearrangement: according to the application and installation order, give

serial numbers to already picked out stone materials, and choose relatively flat ground to do prearrangements, check joint plates whether or not it has color difference and meets the field size requirements and after the completion of this work, store according to the plate number. 6. Installation of embedded parts: on the structural wall surface mount a 12mm expansion

bolt. Mounting distance is equal to stone materials grid; light wall stone materials should be installed on the ground, fix the angled parts on the ceiling, spacing of the mounts should be 600mm. 7. Frame installation: make a frame using a channel beam and angled steel. Use a channel

beam for the main keel and angled steel for the sub keel to form a framework. Channel framework channel beam is #5, horizontal installation spacing is 1000mm; the angled steel is 1.40x40. According to the stone materials joint level size position, snap the line and proceed to installation. According to the wall beam channel division line, mount on the ground. Using the beam channel and embedded parts steel angles on the floor weld the joints, and then weld the horizontal steel angles. Welding quality must comply with the specifications generally required of full welding. Remove weld and apply rust paint. 8. Installation of adjustment sheet: adjustment sheet is based on the stone material plate

specifications; adjustment hanger is made of stainless steel, divided into 50x5mm, processed according to the design requirements. Using a bolt connect to the frame, make sure that its securely installed. 9. Stone slot: slot depth complies with the size of the hanger, general requirement shall not be

less than 10mm, and should be on the center of the rear side to ensure that the edge does not collapse, slot distance 1/4 of the edge length and is not less than 50mm, and the slot edge dust must be cleaned to ensure secure bonding of the glue. 10. Stone installation: when installing the stone, start from the bottom then proceed to the top.

Inspect the stone material, color, texture and size. According to the stone serial number gently put the stone on the T shaped hanger, adjust to correct position, immediately clear the hole, and insert the adhesive into the slot. Required time standard for solidification is 4-8hours to avoid premature solidification, fracture and loose movements. After checking the straightness and flatness with the line, tightly screw the bolts. 11. Clean up: after completing the joint glue, use yarn and other items to clean stone surface,

dry-hanging should be done after the glue is solidified, and then using wallpaper knife, cotton yarn and other items clean the stone surface.

3. Stone veneer

Technological process:

Prepare Construction (drilling, tick Groove) → Dress copper or galvanized wire → Bind reinforcement mesh → Hang Vertically, look for custom line → Install stone → Grout → Wiping joints → Clean and wax Operation Technique:

1. Construction preparation uses electric toothless portable stone cutting machine with circular

saw blades. When in need of binding copper wire slots, four slot positions at the back corner of the plate with two chutes, its spacing is 30~40mm, on the side plate of the two vertical slots at locations open two transverse grooves, then two vertical grooves on the back of the plate position on the lower open a transverse slot, cross slot stone 10~15mm deep, stone groove is located in middle of the stone side. The three grooves are one horizontal slot on the side and two vertical slots on the back. 2. After slotting grooves on the plate, ensure that the prepared No.1620 copper or galvanized

wire are cut to 30cm and bent into a u-shape. The U-shaped copper or galvanized wire sleeve into the dorsal cross within the u-shape, with two edges out from within the two vertical slots in the side of the plate after transverse groove crossing. And then fasten the two vertical slots of copper wire on the back plates. But note that wire should not be screwed too tight to prevent stone slot wire break or fracture. After completion of this copper wire lashing, use a marble trough filled with guaranteed copper wire connected to the stone firmly. 3. Steel banding network based on the primary wall structure of the actual situation of fixed

steel bar mesh and its main following a wall ahead of pre embedded steel bar can be directly embedded, reinforced, eliminating first lashing a vertical diameter 6 reinforced steel tie and up vertical ribs with pre embedded steel bar pressure on the wall. Horizontal and vertical bar is used according to the size of the lashing stone. The second instance is the wall without pre embedded steel, the diameter of 8 ~ 10 expansion bolts in accordance with the stone row of plate and steel mesh construction, drill, tick groove, dress copper wire or galvanized steel banding network hang vertically, find custom line grouting installation stone to wipe seam at the intersection of the fixed expansion bolt and steel mesh welding in the expansion bolt welding slag knocking out after the antirust paint brush finally hang the stone. The third situation is the wall ceramic brick and light wall using diameter 6 reinforced penetrating walls and in turn to the other side of the wall into rectangular with a length of approx. 30mm pre embedded in the wall plastering layer. The reinforced binding order is first in accordance with the size of the stone plate welding vertical steel, and then fixed at the first cross bar on the ground at 10cm with the stud welding firm as first layer under the plate lashing fixed copper wire or galvanized wire. Secondly transverse reinforcement binding lower than 23cm according to the low stone plate is the stone block size in order to secure transverse reinforcement. 4. When snapping the line on the stonewall, pillars and set of doors and windows, use large

weighed down lines from top to bottom to find vertical high-rise building using a theodolite for the verticals. Mainly consider stone thickness of grouting mortar voids and steel mesh size and original wall verticality when wall deviation is large without damage to the structure of the local tick chisel to meet decoration requirements. The overall thickness of wet hanging stones should be appropriate in 5~7mm. After finding the vertical, snap the outline of the size of the stone wall from the ground, control the cylinder line and set of windows and doors. This line is the reference of the first stone installation. Number the stone material and in the benchmark line draw in place a 1mm gap each as the design requires, leaving a gap according to the design regulations.

5. Installation of stone plate should be in accordance with the site series stone plate and

comfortable straight wire or galvanized lead wire, with the stone in place, the stone upper right hand extending into the stone back, the stone mouth, copper wire or galvanized lashing on the transverse rib, tied not too tight to leave allowance, as long as the copper or zinc coated wire and horizontal bars can be fastened. Post grouting can anchor the stone erected, lashing stone plate upper copper or zinc coated wire, and use a wedge to stabilize and adjust the stones vertically and horizontally. The gap between the bulk and base grouting is of a thickness of 30~50mm. Use a ruler to check and adjust the wedge then bolt the copper wire or galvanized lead wire and turn to the other part. Columns can be installed in a clockwise direction starting from the front. After installing the first layer using a right angle ruler to establish the vertical and horizontal surfaces, right angle surfaces, installing the stone plate and found that the stone slab specifications are not accurate or the gap between the stone does not match the application of lead, then ensure the gap between the slab is uniform and make sure the first layer of the slab is flat. After adjusting the first layer, use a modulation of gypsum set into porridge like plaster and paste into the stone plate gap, making the two layers of gypsum connected into a whole wedge and can be plastered and then by ruler check to ensure there is no deformation and hardening of the gypsum before grouting. (If the design has plastic hose with caulking, plug should be placed before grouting) 6. Filling: The mixture ratio for 1:2.5 cement mortar put into a half barrel of water and mix to a

porridge state (Consistency is generally 8~12cm) using an iron pan to slowly pour the pulp, avoid touching the stone panel, gently knock the slate surface using a rubber hammer to make the mortar release air. The height of the first layer of water is 15cm; it shouldn't exceed 1/3 of the stone plate height. Filling the first layer of pulp is important because it is the anchor stone mouth but also wire fixed slate, so operate gently to prevent collision and fierce filling. If there is an occurrence of the stone slab moving outwards, it should be immediately removed and re installed.

After filling the first 15cm of mortar stop for a while for the initial settling of the mortar, check for any movement, then fill the second layer to the height of 20~30cm, let it settle then continue filling. The third layer below the plate is filled to a maximum of 5cm.

7. Clean the seams after all stone panel installation is completed, remove all gypsum and

residual traces, clean with linen, according to the stone panel color paste caulking. Clean while piping, the slot density should be uniform, clean and consistent in color. 8. Column veneer: installation method of stone column veneer such as snap line and etc is the

same as wall veneer, but pay attention, before grouting use wooden nail into the groove

shaped wood clip, seize the stone plane from both sides to prevent external expansion of stone panels during grouting.

4. Stainless steel veneer

Technological process：

Line set-out → veneer processing → Install embedded parts → Install frame → Frame anti-corrosion → Install stainless steel veneer → Glue the panel seams → Clean surface a. Line set out:

b. Veneer processing:

Frame installation on walls and columns: the vertical keel is set up and connected on the embedded parts, according to the decorative panels thickness and prepared surface layer line adjust the position and use 2m towing panel to hang vertically then secure it with bolts. After the vertical keel installation inspection, according to the panel height dimensions, install the horizontal keel and with the vertical keel weld into the same plan.

Frame anti-corrosion: Stainless steel frame must be coated with anti-corrosion paint layer, all welding and anti-corrosion coating damaged parts must be painted twice with anti-corrosion paint and after the inspection and acceptance signed by the supervision unit, the party may carry out the following procedures. e. Stainless steel veneer installation:

Before installing the wall and column panels, the operator must wear clean gloves to prevent

pollution of the surface and scratching arms. Install step by step, from bottom to top and from one side to the other side. Specific constructions as follows:

1. According to the panel arrangement drawing, draw out the keel plug-in installation

position, using a tapping screw fix the plug-in pendant on the keel and make sure that the position of the keel and insert plug-in coincide and then firmly secure it. 2. After the keel plug-in installation is completed, inspect the overall surface flatness,

verticality and firmness of installation. Inspect and repair corrosion, repair and apply an anti-corrosion coating on the stainless steel and damaged parts. 3. During the installation process of the stainless steel panels, the thickness of the edge

gaps between two panels must be uniform. Install while adjusting the edge straightness, levelness, joint width and height difference of the panel to ensure the overall quality of construction. 4. For a small area of the stainless steel veneer wall construction adhesive method can be

used, during construction use a wooden frame for gluing method. First, fix the wooden frame on a wooden board to ensure the flatness level and steel degrees, then using construction glue directly paste the stainless steel panel on the board. While pasting, glue directly the stainless steel decorative panels to the wooden board. The construction glue should be evenly coated so that the decorative panels bond firmly. 5. Gluing panel seams: after the installation of stainless steel panel is completed, fill the

seams with a foam stick; put a glue tape on both sides of the glue-line and then seal off using a silicone weatherproof sealant. 6. Surface cleaning: before cleaning the frame remove the protective film, using a

degumming cleaning agent remove the glue marks and clean the surface with a neutral cleaning agent.

5. Tile veneer

Technological process:

Basic level processing →Hang vertical squares, apply ash paste →Apply bottom mortar →Snap line grid → Arrange tiles → Soak tiles → Paste tiles → Wipe tile joints and seams → Protect finished product.

a. Basic level processing:

First scrape flat the concrete bulges on the wall, large construction steel concrete wall surface should be rough, and fully brush once with a wire brush, then water it wet. If the concrete surface is very smooth, “texturing process” can be used. b. Hanging vertical squares, apply ash paste: c.

According to the tile size and make the ash paste. Application of the bottom mortar:

First brush with a 107 cement mixture slurry using 10% water weight, follow by wiping the bottom layer with mortar (at room temperature use 1:3 mix ratio of cement sand mortar), each thickness should be 5mm. After smearing use a wooden trowel to flatten. Water treat it the next day; when the first layer dries about 60-70%, apply the second layer, thickness of about 8-12mm, then using a wooden bar and trowel scrape flat. Water treat it the next day; if necessary smear the third time, the method is the same as the second time until the bottom mortar is smeared flat. d. Snap line grid:

When the base ash dries 60-70%, according to the drawing requirements, snap the grid lines; at the same time mark out the standard points and control the wall straightness and flatness. e.

Tile arrangement:

According to the detailed drawing and wall dimensions, arrange bricks horizontally and vertically, to ensure brick gap is even. In accordance with the requirements of design drawings, align tiles on the wall horizontally and vertically. It is not permitted to have more than one row of non-whole brick. The non-whole brick row shall be arranged in the secondary part, such as the window to the wall or the corner. But also pay attention to the consistency and symmetry. In case of the prominent piece, application must cut to match the entire tile; the use of non-whole brick can be put together in mosaic. f.

Tile soaking:

Before applying the glazed and outer wall tiles, first clean the tile surface, put in clean water and soak for more than 2 hours, remove from water and after drying or wiping cleaning can be done. g. Paste tiles:

Pasting should go from top to bottom; from the last row tile position should be stable in order to hold the first surface. In the outer tile surface pull horizontal level line as a pasting standard. On the back of the tile use 1:2 ratio cement sand mortar. The mortar thickness is 6-10mm. After putting the tile, using the handle of the trowel, gently tap. Use the steel knife

to adjust the vertical joints, and using a small bar through the standard plan point adjust the verticality.

h. Tile joints and seam wiping:

When covering the tile seams, use 1:1 ratio cement sand mortar, first level the horizontal joints then vertical joints, after leveling the concave surface is 2-3mm. If the stitch has dry extrusion joints or less than 3mm, use a white cement with a pigment to insert the seams. After applying the tile putty use a cloth or a cotton silk dipped in diluted hydrochloric acid to clean.

6. Aluminum veneer

Technological process:

Line set-out → Veneer processing → Install embedded parts → Install frame → Frame anti-corrosion → Install aluminum veneer → Glue the panel seams → Clean surface a. Line set out:

b. Veneer processing:

1. Installation of embedded parts on concrete wall and columns: according to the

measurements of set out wall and columns install the surface line and panel arrangement size; on the corresponding position drill holes with percussion drill. Place expansion bolts and secure the steel angle connectors on the concrete wall.

2. Installation of embedded parts on basic structural wall: When installing on basic ceramic

wall or secondary structural walls such as walls with embedded steel, use ¢10 reinforced full length horizontal layout with embedded steel welded into one as a connector for the vertical keel. If the wall doesn’t have the embedded steel, drill a hole in the ceramic tiles and using C20 concrete insert the embedded steel as a connecting piece for the vertical keel. After the concrete reaches a certain stiffness level, weld angle steel connectors to the embedded steel.

d. Frame installation

1. Frame installation on walls and columns: the vertical keel is set up and connected on the

embedded parts, according to the decorative panels thickness and prepared surface layer line adjust the position and use 2m towing panel to hang vertically then secure it with bolts. After the vertical keel installation inspection, according to the panel height dimensions, install the horizontal keel and with the vertical keel weld into the same plan.

2. Frame anti-corrosion: Metal frame must be coated with anti-corrosion paint layer, all

welding and anti-corrosion coating damaged parts must be painted twice with anti-corrosion paint and after the inspection and acceptance signed by the supervision unit, the party may carry out the following procedures.

e. Aluminum veneer installation:

1. According to the panel arrangement drawing, draw out the keel plug-in installation

position, using a tapping screw fix the plug-in pendant on the keel and make sure that the position of the keel and insert plug-in coincide and then firmly secure it.

2. After the keel plug-in installation is completed, inspect the overall surface flatness,

verticality and firmness of installation. Inspect and repair corrosion, repair and apply an anti-corrosion coating on the metal and damaged parts.

3. During the installation process of the aluminum panels, the thickness of the edge gaps

between two panels must be uniform. Install while adjusting the edge straightness, levelness, joint width and height difference of the panel to ensure the overall quality of construction.

4. For a small area of the aluminum veneer wall construction adhesive method can be used,

during construction use a wooden frame for gluing method. First, fix the wooden frame on a wooden board to ensure the flatness level and steel degrees, then using construction glue directly paste the aluminum panel on the board. While pasting, glue directly the aluminum decorative panels to the wooden board. The construction glue should be evenly coated so that the decorative panels bond firmly.

5. Gluing panel seams: after the installation of aluminum panel is completed, fill the seams

with a foam stick; put a glue tape on both sides of the glue-line and then seal off using a silicone weatherproof sealant.

6. Surface cleaning: before cleaning the frame remove the protective film, using a

degumming cleaning agent remove the glue marks and clean the surface with a neutral cleaning agent.

7. Light Steel Keel Partition Wall

Technical Process

Snap Line → Install Ceiling/ Floor Joist → Install door and window frame → Install Horizontal Keel → Install Pipe cables and equipment → Install Gypsum board → Joints and Surface Treatment → Detailed Treatment. Operation Technique a. Snap Line:

Snap line on the ground or measure on the side of the wall pad according to the drawings. b. Installation of Ceiling and Floor Joists:

Install the Ceiling and Floor joists according to sideline on the joist on top of the wall. To install, fix on the main structure using a nail or metal expansion bolt with spacing of less or equal to 600mm.

c. Making Door and Window Openings

1. The Horizontal Keel along the floor should be cut at the door opening position.

2. On both sides of the door and window openings add vertical keels, open back facing doors and window openings.

3. On the set of door and window openings use horizontal keels, insert a vertical keel in between it and the upper horizontal keel; maintain a consistent spacing with the partition wall's vertical keel. Process the bottom of the window opening.

4. Grading Installation of Vertical Studs: According to the door and window position carry out the vertical stud grading. When installing, according to the grading position insert the studs’ upper and lower ends into the ceiling and floor keel and adjust perpendicularly. For side studs that are near the wall and columns additionally use blind rivets as well as metal expansion or drive pins to fix on the ceiling and floor along the wall and column, the usual nail spacing is 900mm. When fixing the vertical studs along the ceiling and the floor use not less than three blind rivets per surface, for both surfaces.

5. Installation of the Horizontal Studs: Arrange Horizontal studs according to the requirements. For C100 and C75 studs use perforated studs, if the height is less than 3m, one stud is the minimum. Between 3m and 5m use 2 studs and if more than 5m, use 3studs. On one side of the stud install a gypsum board layer. The stud position can be adjusted in parts following the installation of the gypsum board. Installing electrical and water conduits: When installing electrical cables, water pipes and equipment, avoid breaking the horizontal and vertical studs. At the same time avoid running pipes along the bottom of the wall. It is required to fix firmly and implore strengthening measures. d. Gypsum Board Installation:

1. Before installing the gypsum board, check the installation quality of the studs.

2. Start installing the gypsum board from one side from the door or one end of the wall. Lay the gypsum board vertically; the long side seam should fall on the vertical stud. The gypsum board side should be centered with the vertical stud, the overlap width of the gypsum board with the stud should be more or equal to 15mm.

3. Fix the gypsum board firmly on the stud using self-tapping screws, the distance between the nails on the edge of the board is less or equal to 200mm, the distance between the nails in the center of the board is less or equal to 300mm.

4. The self-tapping screws distance from the board edge should be at least 10mm to 15mm, and 15mm to 20mm from the cut edge. The distance of the nails along the board edge should be 200mm, and 300mm from the center of the board.

5. When the screws are firmly fixed, the gypsum board must firmly in line with the stud. When installing the gypsum board, it needs to be fixed from the middle towards the length side and short side. The screws should sink into the gypsum board surface with an appropriate depth of 0.5mm to 1mm.

6. Install the internal wall fireproofing, soundproofing rock wool and insulation filling material, at the same time install and fill the gypsum board on the other side.

7. Installation of the gypsum board on one side: The method of installation is the same as the first one; the joints should be staggered with the seams on the first side. The seams should not be placed on the same stud.

8. Installing a double layered gypsum board wall: The method of fixing the second layer and the

first one is the same. The second layer joint and the first layer should be staggered. e. Joint and surface layer processing:

Gypsum board partition wall joints are commonly made flat, as follows:

1. Mix the sealant and set aside for 15 minutes. Check if the board seams are clean.

2. After filling the gap with sealant, the width should not go over the surface of the board. 3. The width of the sealant after applying from the edge of the board should not be less than

50mm.

4. After the joint is taped and glued at the seams, use a spatula to scrape and compact and

ensure no bubbles.

5. Ensure that the sealant tape and the gypsum board seam are aligned and centered.

6. The protruding sealant on the edge of the joint should be scraped on the tape, scrape the

underlying sealant smooth to embed the tape in the sealant.

7. Stewing: the first step is coagulation treatment. Use a caulk to cover the seam for the first

coat, the thickness should be the same as the board. The seam width should be wider than the original seam and each seam width is at least 50mm.

8. Stewing: the second step is coagulation treatment. Use a caulk to cover the seam for the

second coat and scrape it flat. The seam width should be wider than the original seam by at least 50mm, and finally level the wedge bevel slope. After solidification polish lightly using sandpaper and smoothen the surface.

9. Detail Processing: On the wall surface, column surface and entrance external angles use 2

layers of fiber glass cloth for angle protection, use putty to flatten the surface.

Ceiling Engineering

1. Light steel keel gypsum board ceiling

Technological Process:

Snap line→ install the main tee hangers→ install cross tees→ install plasterboard a. Snap line:

According to floor height using 50 lines and a ruler determine exact height of the ceiling, along the wall, around the pillars and use a level to draw a line completely around the room indicating where the wall angle will be applied. b. Installation of the main tee hangers:

Determine the elevation of the lower end of the hanger rods, according to the ceiling joists without any bolts fix firmly to pre-installed steel in the concrete. For light steel ceiling grid, use steel with 6-10 diameters. The distance of the end position shouldn’t be greater than 300mm and the distance between hanging rods should be between 900-1200mm. In case a ceiling ventilation pipe is larger than the width of a steel hanging rod, a special hanging rod must be designed. Using a 40X3 angled steel weld, make a U-shaped drop ceiling frame and with the M8 expansion bolt, fix to the ceiling, then secure the hanger rod on the hanger frame. c. Installation of the cross tees:

On the main tee secure the hangers, install the corresponding cross tees according to the line

and position then screw the rods and tighten the bolts. Adjust the cable elevation and straightness then using a nail fix edges of the cross tees. d. Installation of paper faced gypsum board:

Paper faced gypsum board must be laid on the vertical grid, arrange the boards seam properly. The board should be drilled enough to let the head of the screw sink in.

Application of the antirust paint: On the light steel frame, on all exposed ceiling iron, carbon steel or any exposed joints must be painted with antirust paint and do anti-corrosion treatment. The traditional reinforced hanger must be painted with antirust paint, if a galvanized screw is used then there’s no need to apply. Quality standard:

1. Light steel frame and plasterboard material, type, style and specifications should be

consistent with the design requirements.

2. Light steel frame installation, the ceiling main tees, the cross tees must be in a correct

position, fixed firmly with no loose movements.

3. Plasterboard should not have any delaminating, warping, fractures, missing angles and edges;

and must be installed firmly.

2. Aluminum composite panel

Technical Process

Snap line→ Install the hanging rods→ Install the main keel→ Install the side joists→ Install the sub keel→ Install the metal panels→ Clean a. Snap line:

According to the floor elevation line and design elevation, find the ceiling elevation line along the four walls and find the center of the room. Mark the ceiling elevation line along the four walls as well as the keel position line. b. Hanging rod installation:

After setting out the ceiling elevation and keel position lines, determine the elevation of the lower end of hanging rods. Install the prepared hanging rods to the ceiling using the expansion bolts. Control the spacing within 1200mm. c. Main keel installation:

C38 light steel keel is generally used for the main keel. Control the spacing within 1200mm. d. Side joist installation:

According to the ceiling height requirements, using a masonry nails, install 25x25mm paint keel around the walls. Spacing between the masonry nail should not exceed 300mm. e. Sub keel installation:

According to the size specifications of the aluminum composite panels installation and support, mount the sub keel by hanging them on the main keel using the hanging rods. f. Metal panel installation:

When installing the aluminum composite panel, from the middle of the assembly area set out the keel base line in the vertical direction and align reference lines to both sides of the room for installation. g. Cleaning:

After installation of the aluminum composite panels, using a cloth wipe all surfaces of dirt, fingerprints and so on.

3. Exposed Concrete Construction Technique

Construction Process

Design mold and manufacture → Install template → Construct visible joints → Pour exposed concrete → Cure exposed concrete → Safeguard finished product. a. Design mold and manufacture

According to the exposed concrete walls design height, length and thickness, design requirements for the seams, use smooth bamboo plywood for the template. b. Install template

After pouring of the concrete to the base is complete, the height of the reinforced concrete should be strictly controlled to ensure that the mold is level. In order to ensure non-leakage between the two templates, fill the seam of the template with a double side glue, to ensure that the two templates are closely connected. c. Construct open joints

The visible joints separate the whole concrete surface into blocks. The visible joints design measurements are 2 x 1cm, fix on the bamboo mold when installing the template, ensure that the visible joints are straight and smooth. d. Pour exposed concrete

Plan and coordinate the preparation before pouring. First use Portland cement, ordinary Portland cement and slag cement, the grade of cement not less than 42.5. Pouring of the concrete should be continuous and the construction joint shall be kept in the visible joint. e. Curing of exposed concrete

When the concrete under the same conditions is tested and reaches a strength of 3MPa, remove the mold. After removing the mold, Curing should be done immediately in order to reduce the appearance of color difference on the concrete surface, shrinkage cracks and other phenomena. Before removing the mold and during the curing process, keep wet with a sprinkler. The curing time should not be less than 7 days. f. Safeguard finished product

After construction continues, the exposed concrete should be safeguarded. Ensure no collision and pollution on the concrete surface.

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